Forrest used his cavalry in every possible manner, dismounting in the battle field and employing it as infantry. In October, 1864, during a raid, he impeded the navigation of the Tennessee River, which was filled with Federal gunboats. Choosing a strong position on the bank, he masked his guns and awaited the approach of the enemy's vessels. He captured a gunboat and a transport, and manned them with his own men; but his naval expedition did not last long. Pursued by several gunboats, he had to run his ships on shore, when the troopers gladly mounted their horses again. His object was, however, gained--inspiring alarm throughout the country and occupying a considerable number of the enemy. Later on the Federals copied this system, when the raids of Sheridan, with his 10,000 horsemen, armed with the magazine rifle and revolver, with sword attached to the saddle, brought about the final overthrow of the Southern army. The next campaign that took place was in 1866, known as the "Seven Weeks' War," when large bodies of cavalry were used by the Austrians and Prussians. This campaign was of such short duration that there was not sufficient time for the experience gained in the use of cavalry to be utilized while the war lasted; but when the war was over, both sides, having bought their experience, set out to reorganize their systems, and the course pursued by the Prussians after this campaign in largely increasing their cavalry was fully justified by the advantages reaped in the war in France in 1870. At the close of the Franco-German war the attention of the whole of Europe was called to the successful use of German cavalry during the campaign, more especially the advanced duties, when at times 60 miles in breadth and 50 in advance of the army was covered by the cavalry. In England, after the termination of this war, many German military works of great value were translated and published; the battle fields in France were visited and described; every movement of both armies, strategical and tactical, was studied. All this tended to draw our attention to the extended use of the cavalry arm in future campaigns, and the shortcomings of our own system were carefully scrutinized. The movements of our drill book were simplified, the careful training of our men in shooting was more fully recognized, and the teaching of advanced cavalry duties, reconnaissance, outpost and dismounted work, were gone into most thoroughly--in such a manner that I may confidently appeal to those officers who have the best opportunities of forming an opinion, whether our cavalry does not bear comparison now with what is being done in other armies, and in these matters is advancing in a satisfactory manner. While all this good work has been going on (and I would be the last to say one word that might seem to depreciate its value) we may perhaps have permitted the action of cavalry on the field of battle to escape from sufficient notice.